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(,100761):DPLC,,,DPLCDPLC,,xDSLHFCPCMWLANFSO,,DPLC,,DPLCEMCEMI,DPLCEMCDPLC,EMCEMI,EMI,DPLC,,DPLC,DPLC,:;;;;:TN913.23:A:1005-7641(2003)04-0001-12:2003-02-08:(1938-),,,,,0,Internet,220P380V,(),1997108,?,[1]PLC(PowerLineCommunications),PLT(PowerLineTechn2ology),DPL(DigitalPowerLine),,PLC(PowerLineCarrier)PLC(Pro2grammableLogicController),DPLC(DistributionPowerLineCommunications),,,,,DPLC,2700200282DPLC,DPLCDPLC,DPLC,,;,;,,?,DPLC(),,,,DPLC,120034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,UnitedUtilitiesNortelDPL,NOR.WEB1,1999930,2:,,;,,,,,DPL,Siemens20013DPLC,200287,As2com45MbitPsDPLC,DPLC,200291213,PLCforum(DPLC)11920:PLCforum,RWE,DPLC[2]DPLC,(DPLC),RWE,,,,:,,DPLC,DPLCDPLC1DPLCDPLC,:(1)DS245MbitPs,200MbitPs(EMI),2003[3](2)OFDMDPLCOFDM,OFDMDPLC[45](3)enAFE(),,[6](4)2001626,SanRamon(HomePlugPowerlineAlliance,HomePlug):14MbitPs(HomePlug1.0)[7]20021024,:HomePlugAV2004(AV,AudioandVideo),(HDTV)(SDTV),PCCableTVQoS,HomePlug1.0[8],DPLC,,DPLC,,OFTEL(19997),(199710212610MHz1MbitPsDPL,Manchester,),OFTELDPLC2EMIEMCDPLC,MbitPsMbitPs,MHz220034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()NOR.WEBDPL,,BBC()4(Radio4),DPLC2.1DPLCEMCEMC()EMC,EMC,IT,DPLCEMC(DPLCEMC),ITU(),,IEC()CISPR(,),,DPLC1.63010MHzEMC,,310148.5kHz,EN5006521:1999310148.5kHz5,,dBV(1V,dB)(122134dBV)150kHzDPLC,EMCDPLC,EMC20002HF()(1.630.0MHz)DPLCEMCMPT1570RegTP()1999NB30-1999EMC1NB30MPT15701MPT1570NB30EMCNB30MPT1570,,EMC,NB30MPT15702030dB,DPLC,(CarrierCurrentSystem),EMCFCC-152FCC-15500kHz(Av)300m500kHz30m(Qu.P.)2FCC-15EMCNB30MPT1570FCC-15[12],20MHz,FCC-15,30m29dBVPm,3m50dBVPm,NB30,3m29dBVPm,MPT1570,3m10dBVPm,FCC-15,20MHz,DPLC3m320034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3,DPLC3m20MHz90dBVPm),IEC61000-3-8:1997-08,DPLC3525kHz,:995kHz:134dBV;9510148.5kHz:116dBV(134dBV);148.550010kHz:6656dBV();500525kHz:56dBVITU2.2DPLCEMCDPLC,HF(1.630.0MHz,)EMC1.630.0MHz,,,1.6MHz,HF,DPLC,PolyTraxDPLC,NB30[9],343,(4),NB30EMC4,NB30,148.5kHz,DPLC(3PLC)NB30,148.5kHz,DPLCNB30,NB30DPLC4DPLCNB30PolyTraxDPLC,PTX2148.5kHz,155kbitPs,;PTX3525kHz,2MbitPs,NB3020dBVPm;PTX1.6MHz,4MbitPs,NB3030dBVPm200267,DPLC,,,,,5,(54dBVPm)10dBVPm,102002731:DPLC,,[10]10m,EMC,kHzDPLC(12MbitPs);MHzDPLC(2MbitPs),HomePlug14MbitPs420034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,)EMC,,PolyTraxkHz2.5MbitPsDPLCEMC2.3DPLCEMCDPLC(HF-Radio)(1.63010MHz),EMCRegTPEMCDPLC,DPLC[11]NOR.WEBDPL(2.2610MHz,1MbitPs)BBC(),,EMC,,EMC,DPL,mW199812AscomRegTP,DPLC,DPLC-40dBmPHz(Hz1mW,dB)10dB(1.63010MHz1500km,km),DPLC,RegTP,NB303040dB,1999924RegTPATRT(,)DPLC199931824CeBIT(,)CeBIT99,RWEAscom,DPLCDPLCDPLC,DPLC,DPLCCeBIT99,RWE-AscomDPLC,ISDNRegTPDPLC,,DPLCDPLC20025RSGB()IARU():,AM,PLC2CDMAOFDM,,,,,,EMIDPLC,DPLC,DPLCHF,2000,DPLC,DPLCEMINB30,DPLC,DPLC,,RegTPDPLC520034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,)HFCEPTPSE,ETSI()PCENELEC(,)xDSLNB30,,BBCNB3020dB20024CEPTPSE35,,EMCNB30,ETSIPCENELEC,NB30,20dB,HF,IECCISPRDPLC,2DPLC,HF,,,,ITU,;,EMCEMIDPLCEMIEMC,(Karlsruhe)(DPLC)(EMC)[12],DPLCxDSLCableModemEMI,DPLCEMI,,,,,DPLC,,DPLC,,,,DPLCDPLC3DPLCDPLC,DPLC,DPLC,,,(50Hz)()(),,,,35dB,PVC(),,100m20MHz60dB()()HFDPLC,0.1100.0,,,,,,DPLC,,,,620034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,),,1s20dB,10dBDPLC,(),,DPLCPOP(,WAN)(),DPLC,,,DPLC4DPLC,(LAN),,WANWAN,DPLC,DPLC,110MbitPs1,DPLC,DPLC,(SharingtheBandwidth),DPLC(),DPLC,40%,40%DPLC,,110MbitPsPkbits-16416028.8356128801024101288012880102410DVD102401ITpcworld.com,HomePlug14MbitPs2002[13]HomePlug()14MbitPs,5.5MbitPs,39%DPLC,DPLC:;:,,,:,,,DPLC,DPLC,,,,,6[1],720034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,,xDSLLAN,FSO,DPLC5.1xDSLxDSLDSL(DigitalSubscriberLine),,xDSLADSL(DSL)HD2SL(DSL)SDSL(DSL)VDSL(DSL),ADSLVDSLADSLADSL1.5MbitPs,8MbitPs,12MbitPsADSL,164kbitPs1.5MbitPs,640kbitPs8MbitPs,ADSL512kbitPs1MbitPs2MbitPsADSL,512kbitPsADSL50kbitPs,2MbitPsADSLkbitPs,56kbitPsModem5kbitPs,ADSL,1MbitPsADSL,,ADSL80%,,ADSLADSLADSL,HDTV;;,ADSL,(VDSL)VDSL26MbitPs,500m,;13MbitPs26MbitPs52MbitPs3,2MbitPs2MbitPs6.4MbitPs,1500m1000m300m,20021052MbitPsVDSL,1352MbitPs,1.52.3MbitPs2500(160P)VDSL,300m,,,40MbitPsVDSL820034©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()VDSL40MbitPs,8,WAN8,4ADSL10BASE2TP100BASE2TXLAN277,15MbitPsADSL1.1MHz,812MbitPs;VDSL12MHz,5052MbitPs,,,5.2HFCCableModemHFC()CableModem(,CM),,CableModemModem,,Ca2bleModemHFC,;Modem,P;,,CableModem1040MbitPs,100kbitPs,300kbitPs,HFCCATV,,,,HFC:,;,CableModem,,,,,,,,,,HFCDPLC,,,HFCCMDOCSIS(.),CM,CM100,Modem,5.3WLAN,,WirelessLAN,WLAN,,,,WLAN,,LMDS,,WLAN()WLANIEEE802.11b,11MbitPs,WLAN,,,5.8GHz2.4GHz,WLAN,,WLAN,WLAN,G